Edge roll structure



April 1963 1.. o. CALDEMEYER ETAL 3,085,260

' EDGE ROLL STRUCTURE Filed Dec. 6. 1960 Wr 'w' 1 INVENTORS' 4mm 0.Cmoewsrzm 154 E Cxuaznirsg United States Patent 6, 196%, Ser. No. 74,262(Cl. -354) Lloyd 0.

F. Caltlemeyer, ville, Ind.

Filed Dec.

8 Claims.

The present invention relates to an edge roll structure for upholsteredfurniture, and more particularly to a new and novel adjustable type edgeroll structure which is readily adaptable for use with various types ofupholstered furniture.

As is known, an edge roll is provided around the periphery of the basesection of upholstered furniture to retain the cushioning thereon and,additionally, to provide for an attractive completed furniture unit.Although various forms of edge rolls have been previously proposed andused, including those formed on coil springs having the front or sideportion of the uppermost convolution deformed upwardly, the ultimatemanufacturing and assembly of such prior structures was oftentimesunwieldy and complicated.

By virtue of the instant invention, the applicants have provided a newand novel edge roll structure for upholstered furniture having a portionwhich is movable along the coil springs disposed on the base section ofsuch furniture to permit the ready adaptability of the edge roll forvarious types of upholstered furniture. In regard to the latter, theapplicants edge roll structure may be efiectively varied space-wise fromthe outer edge of the base section, depending upon what width edge rollis desired. For example, and by way of illustration, in a typicalupholstered unit, the edge roll structure may extend from the front ofthe base section approximately six inches rearw-ardly towards the backof the unit, whereas by virtue of the instant invention, the movableportion of the edge roll is slidable to a position some eight or teninches from the front of the coil springs. Stated otherwise, the movableportion of the instant edge roll structure may be disposed on the secondrow of springs forming part of the edge roll, as well as on the backportion of the front row of springs.

Accordingly, a principal object of the present invention is to provide anew and novel edge roll for upholstered furniture which is readilyadjustable foruse on different furniture styles.

Another object of the present invention is to provide a new and noveledge roll for upholstered furniture which may be conveniently assembledwhen used or which may be preassembled prior to placement thereof foruse.

A further object of the present invention is to provide a new and noveledge roll for upholstered furniture having a portion thereof which isslidable with reference to the outer edge of the upholstered unit,whereby any desired width edge roll may be achieved in a simple and yeteffective manner. a

A still further and more general object of the present invention is toprovide a new and novel edge roll for upholstered furniture having aminimum number of components which effectively combine to permit readyand selective placement of the structure, as desired, on the upholsteredunit.

Other objects and a better understanding of the instant invention willbecome more apparent from the following description, taken inconjunction with the accompanying drawing, wherein- FIG. 1 is a view invertical section showing the an plieants novel edge roll in typical useon the base section of an upholstered unit;

FIG. 2 is a fragmentary plan view of the base sec- 3,085,260 PatentedApr. 16, 1963 ice tion for the edge roll in FIG. 1, with the edge rollbeing only partly assembled to show certain details thereof;

FIG. 3 is an enlarged view in vertical section, taken at line 3-3 ofFIG. 1 and looking in the direction of the arrows, showing furtherdetails of the applicants novel invention;

FIG. 4 is an enlarged tion, generally corresponding to FIG. 5 is afragmentary and enlarged view in vertical section, generally comparingto the view of FIG. 1, showing, however, the movable portion of the edgeroll disposed in a position of use with another style of upholsteredfurniture.

For the purposes of promoting an understanding of the principles of theinvention, reference will now be made to the embodiment illustrated inthe drawing and specific language will be used to describe the same. Itwill nevertheless be understood that no limitation of the scope of theinvention is thereby intended, such alterations and furthermodifications in the illustrated device, and such further applicationsof the principles of the invention as illustrated therein beingcontemplated as would normally occur to one skilled in the art to whichthe invention relates.

Referring now to the figures, the applicants novel edge roll is shown ina typical position of use on a base section 10 of an upholsteredfurniture unit which has a front base rail 11, a rear base rail 12 andside base rails 14 secured together, with the bottoms of back posts 15,to form a generally rectangular base frame. Disposed in :latticedfashion between the front and rear base rails 11 and 12, respectively,and the side base rails 14, are a series of base wires 16 which aresecured to the top surfaces of the base rails by conventional means,such as 'by tacking, for example.

Extending upwardly from the base wires 16 are conventional coil springs18 which, in the preferred embodiment of the invention, increase indiameter in an upward direction. The coil detailed view in verticalseethe view of FIG. 1; and

springs 1-8 disposed along the outer edges of the base section 10, i.e.adjacent the front or adjacent the sides where there is no upholsteredarm, each have the forward and/or side portions, respectively, of theuppermost convolution thereof deformed upwardly, all as well known inthe art. The uppermost convolutions of each of the coil springs 18 aresecured to a tangential edge wire 19 through the use of clamping devices29, thereby forming an upper framework for the coil springs 18 of thespring assembly. Increased stability for the overall spring assembly isfurther attained by the use of wires 21 which are deformed downwardly at21a beneath the top of each of the coil springs 18, which deformedportions are hooked together by small sections of wire 22.

It should be understood that the aforedescribed structure isconventional in the art and the discussion thereof herein is merely abasis for an understanding of the applicants novel invention which, inthe preferred embodiment, is used therewith, and specific detaileddiscussion thereof has been omitted for reasons of clarity.

Referring now to the figures, the applicants new and novel edge roll 25comprises, when assembled, multilayers of components, typically based onan insulator 27, the latter being disposed on the tops of the rows ofsprings 18 forming part of the base section 10 of the upholstered unit.The insulator 27 is typically defined by a series of generally parallelwires 3d, each of which extend through a portion of a wide strip ofpaperboard 3d. which is laid over the upwardly deformed part of thefront row of springs 18 (see FIGS. 1, 2 and 4). The wires 30 aremaintained in the aforesaid generally parallel relationship by means ofa series of slidable hemplike elements 33 through which each extend, asshould be the tradethe furniexample, and as should be apparent from thefollowing discussion, the tacking strip 35 is typically positionedsprings 18 (FIGS.

the preceding being secured together by means of silver stitches 44, forexample. The preceding arrangement can either be preassembled prior toits use on an upholstered unit or may, in fact, be assembled on theunit.

If the instant novel edge roll 25 is preassembled, one

through the use of silver stitches 44.

As noted hereabove, the wide strip of paperboard 31 forming part of theinsulator 27 is laid over and extends downwardly from the upwardlydeformed portion of the front row of springs 18 (see FIG. 4), and asuitable layer of padding 46, such as cotton, polyurethane, or likematerial, is disposed thereover. Similar padding 48 is also disposedover the back portion of the insulator 27, i.e. towards the rear of theunit, whereupon the cover fabric 40 is drawn over the padding 46 anddownwardly to a securing position typically on the bottom surface of thefront base rail 11. The denim 42 is drawn rearwardly over the padding 48i and is typically secured onto the back surface of the rear base rail12.

Depending upon the type of style or" upholstered unit, the instant noveledge roll assembly 25 is capable of as- In any event, the tacking strip35 is secured in its desired position by reason of the tacking of thedenim 42 and the fabric cover 40 to the rear base rail 12 and to thefront base rail 11, respectively.

In addition to the above, an alternate structure typically utilizes aunitary piece of padding in the form of polyurethane Ioam, where thelatter is silver-stitched between along with the cover be necessary, asthe polyurethane the paperboard 31 and extends rearwardly over theremainder of the insulator 27, in a continuous piece, to the backportion of the upholstered unit.

' be utilized for its assembly. Morevoer, the invention may be practicedusing various other types of springs with a turned-up edge, as, forexample, a convolute type spring. Accordingly, the preceding descriptionshould be considered illustrative and not as limiting the scope of thefollowing claims.

We claim:

structure comprising a tacking strip defined by tacking preassembledinsulator overlying relationship, along said Wires,

5. In upholstered furniture having a base section desaid springs, wheresaid insulator includes a series of generally parallel wires, an edgeroll structure comprising a tacking strip having a layer of fabric coverand a layer of denim stitched thereto, said tacking strip positioned onand slidable along said wires, and padding disposed on said insulator,said fabric cover overlying certain of said padding and secured to aportion of said base section.

6. In upholstered furniture having a base section defined by springs anda preassembled insulator overlying said springs, where said insulatorincludes a series of generally parallel Wires, an edge roll structurecomprising a tacking strip having a layer of fabric cover, a layer ofdenim and padding stitched thereto, said tacking strip positioned on andslidable along said wires, and said fabric cover overlying certain ofsaid padding and secured to a portion of said base section.

7. In upholstered furniture having a base section defined by a frameworkhaving springs and a preassembled insulator overlying said springs,Where said insulator includes a series of generally parallel wires whichextend 20 through a portion of a flexible member forming a part thereof,an edge roll structure comprising a tacking strip defined by tackingmembers having a layer of fabric cover, a layer of denim and paddingdisposed therebetween and in stitched relationship, said tacking strippositioned on and slidable along said wires, and said fabric coveroverlying certain of said padding and secured to a portion of saidframework of said base section, and said denim overlying other of saidpadding and secured to another portion of said framework of said basesection.

8. The edge roll structure of claim 7 where said padding extendscompletely over said insulator.

References Cited in the file of this patent UNITED STATES PATENTS2,621,713 Cook Dec. 16, 1952 2,656,880 Graupner Oct. 27, 1953 2,742,958Gerber Apr. 24, 1956

6. IN UPHOLSTERED FURNITURE HAVING A BASE SECTION DEFINED BY SPRINGS ANDA PREASSEMBLED INSULATOR OVERLYING SAID SPRINGS, WHERE SAID INSULATORINCLUDES A SERIES OF GENERALLY PARALLEL WIRES, AN EDGE ROLL STRUCTURECOMPRISING A TACKING STRIP HAVING A LAYER OF FABRIC COVER, A LAYER OFDENIM AND PADDING STITCHED THERETO, SAID TACKING STRIP POSITIONED ON ANDSLIDABLE ALONG SAID WIRES, AND SAID FABRIC COVER OVERLYING CERTAIN OFSAID PADDING AND SECURED TO A PORTION OF SAID BASE SECTION.